Engine-cooling means



March BI, 1931. o. H. SPENCER 1,798,764

ENGINE COOLING MEANS Filed March 9, 1929 2 Sheets-Sheet 1 Invcnior March 31, 1931. Q H, SPENCER 1,798,764

ENGINE COOLING MEANS Filed March 9. 1929 2 Sheets-Sheet 2 Patented Mar. 31, 1931 OWEN H. SPENCER, OF INDIANAPOLIS, INDIANA ENGINE-GDOLING MEANS Application filed March 9,

This invention relates to cooling means for engines, and particularly to the internal combustion type, and one feature of the invention the provision of a fan structure adapted to direct a blast of air against the exterior of an engine for cooling the same.

A further feature of the invention is the provision of means for collecting a portion of the blast of air for cooling the interior of the engine.

A further feature of theinvention is the provision of means for conducting the collected air blast to certain parts of the engine.

A further feature of the invention is the provision of means for causing the air to enter the collecting chamber.

Other objects and advantages will be hereinafter more fully set forth and pointed out in the accompanying specification.

In the accompanying drawings which are made a part of this application,

Figure 1 is an end elevation of an engine with the fan mechanism thereon.

Figure 2 is a top plan View of an engine with parts broken away and in section.

Figure 3 is a detail sectional view of the air collecting mechanism, as seen on line 33, Fig. 1.

Referring to the drawings in which similar reference numerals designate corresponding parts thruout the several views, 1 indicates the cylinders of an engine, preferably of the internal combustion type and 2 indicates a fan structure adapted to direct a blast of air against the exterior surfaces of the engine for cooling the same.

AS certain portions of the cylinders of an engine of this type are heated to a greater degree than other parts, means is provided for collecting portions of the air blast as it is directed toward the parts of the engine and conveying it to the superheated parts, comprising a duct 3, which extends from a point adjacent the path of the fan blades to the several cylinders 1, said duct being substantially at right angles to the fan structure and connected at intervals thruout its length with air chambers l around the cylinders 1. The mouth 5 of the duct 3 is open,

of air against said cylinders, and means sub- 1929. ism-n1 No. 345,810.

so that aportioniof the blast of air created by the fan structure willentertherein and be carried to the various chambers 4, and to induce the blast of air to enter the mouth 5, bars 6 are disposed across the open end of themouth 5, preferably at an angle to a line intersecting theaxis of the fan structure and the duct. By arranging the bars 6 in this manner, the current of air, as it is forced past the open end of the duct 3, will be some- What interrupted and caused to enter the mouth 5 with suflicient force and volumeto be directed thru the duct 3 and chambers t.

As the chambers 4 surround the cylinders at the point thereon receiving a greater amount of heat than the remainder of the cylinders, the extra supply of cooling medium will maintain the cylinders at these points at substantially the same temperature as the remainder of the cylinders, with no extra cost or'greater or separate blast of air.

WVhile the description and drawings illustrate in a general Way certain instrumentalities which may be employed in carrying the invention into effect, it is evident that many modifications may be made in the various details, without departing from the scope of the appended claims, it being understood that the invention is not restricted to the particular examples herein described.

I claim as my invention:

1. In a cooling means for an engine, the combination with the cylinders of an engine, of a fan for directing a blast of air from the front to the rear end of said engine, and means extending from the front to the rear cylinders and substantially at right angles to said fan for gathering and conveying a portion of the blast of airto specified parts of the cylinders.

2. In a cooling means for an engine, the combination with the cylinders of an engine, having air chambers therein, of a fan for- Wardly of said engine for directing a blast stantially at right angles to said fan for gathering a portion of the air blast and conveying the same to said chambers.

3. In a cooling means for an engine, the combination with the cylinders of an engine 1 havin air chambers therein, and means for directing a blast of air against said cylinders, of a duct substantially at right angles to said fan having a flared open end adapted to gather a portion of said air blast and convey 5 the same to said chambers. a v

4. In a cooling means for an engine, the combination with the cylinders of an engine having air receiving chambers formed therearound, and means for directing a blast of air against said cylinders, of a duct adapted to convey air to said chambers, and means extending across the open end of said duct against which a portion of the air blast is directed for gathering and causing a portion of said blast of air to enter said duct.

In testimony whereof, I have hereunto set Ky 1lgand on this the 5th day of March, 1929, 20 OWEN SPENCER. 

